a= 1; b = 12.4; c=-1.2
x1+x2= [tex]-\frac{b}{a}[/tex][tex]= -\frac{12.4}{1}=12.4[/tex]
x1*x2=[tex]\frac{c}{a} =\frac{-1.2}{1} =-1.2[/tex]
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a= 1; b = 12.4; c=-1.2
x1+x2= [tex]-\frac{b}{a}[/tex][tex]= -\frac{12.4}{1}=12.4[/tex]
x1*x2=[tex]\frac{c}{a} =\frac{-1.2}{1} =-1.2[/tex]